bug:_qr_code_data_list_extract_t

duplicate symbol _base64_encode in: /Users/developer/Library/Developer/Xcode/DerivedData/WeiZhiBusiness-eigzajekuxktmoaanpilkqtbhvla/Build/Intermediates/WeiZhiBusiness.build/Debug-iphonesimulator/WeiZhiBusiness.build/Objects-normal/x86_64/base64.o

解决办法:

bugbase64.png

 "_iconv", referenced from:
      _qr_code_data_list_extract_text in libzbar.a(qrdectxt.o)
  "_iconv_close", referenced from:
      _qr_code_data_list_extract_text in libzbar.a(qrdectxt.o)
  "_iconv_open", referenced from:
      _qr_code_data_list_extract_text in libzbar.a(qrdectxt.o)


 "_iconv_open", referenced from:

      __nl_find_msg inGStreamer(libintl_a_i386_-dcigettext.o)

这些错误并非是配置不正确，而是需要增加libiconv.dylib这个库，把coreVideo.FrameWork加进去！CoreMedia.FrameWork AVFoundation加进去.增加之后就可以正常编译运行了，